Portable data collection device including imaging assembly with modular high density dataform reader assembly
First Claim
1. A portable data collection device comprising:
- a) a modular camera assembly including a photosensor array having an array of photosensor elements generating a signal representative of an image of a target area;
b) a modular camera assembly housing for supporting components of the modular camera assembly;
c) an optic assembly including lens assembly supported within a shroud assembly and positioned to focus illumination reflected from a generally rectangular target area onto said photosensor elements, the optic assembly having a best focus position at a predetermined distance from an outwardly facing optic surface of an outermost lens which results in a clearest image of the target area being focused onto the photosensor elements;
d) an illumination assembly directing illumination towards the target area and including a lens array having a plurality of optic surfaces for directing illumination generated by illumination sources toward an area substantially congruent with the target area, the lens array forming an outer surface of the modular housing;
e) the shroud assembly supported within the housing and having an outwardly facing end adjacent the lens array; and
f) wherein the predetermined distance corresponding to the best focus position is less than four inches.
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0 Petitions
Accused Products
Abstract
A portable data collection device adapted to read high density bar code and matrix dataforms. The device includes an imaging assembly including a modular camera housing supporting a two dimensional (2D) photosensor array. The imaging assembly is selectively actuatable with a first trigger for reading a target dataform in the imaging assembly'"'"'s target area and actuatable with a second trigger for capturing a image of the target object in the target area. The modular camera housing precisely positions an optic assembly such that the sharpest image of the target dataform is focused at a center point of the photosensor array. The optic assembly includes a plurality of lenses supported in a shroud assembly. The shroud assembly is adjustable to permit precise positioning of the lens assembly with respect to the photosensor array along a longitudinal optical axis of the lens assembly. The shroud assembly is supported within the modular camera housing such that the optical axis of the lens assembly is perpendicular with respect to the photosensor array.
371 Citations
25 Claims
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1. A portable data collection device comprising:
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a) a modular camera assembly including a photosensor array having an array of photosensor elements generating a signal representative of an image of a target area; b) a modular camera assembly housing for supporting components of the modular camera assembly; c) an optic assembly including lens assembly supported within a shroud assembly and positioned to focus illumination reflected from a generally rectangular target area onto said photosensor elements, the optic assembly having a best focus position at a predetermined distance from an outwardly facing optic surface of an outermost lens which results in a clearest image of the target area being focused onto the photosensor elements; d) an illumination assembly directing illumination towards the target area and including a lens array having a plurality of optic surfaces for directing illumination generated by illumination sources toward an area substantially congruent with the target area, the lens array forming an outer surface of the modular housing; e) the shroud assembly supported within the housing and having an outwardly facing end adjacent the lens array; and f) wherein the predetermined distance corresponding to the best focus position is less than four inches. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A portable data collection device comprising:
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a) a modular camera assembly including a photosensor array having an array of photosensor elements read out after an exposure period to generate a signal representative of an image of a target area; b) a modular camera assembly housing for supporting components of the modular camera assembly; c) an optic assembly including lens assembly supported within a shroud assembly and positioned to focus illumination reflected from a target area onto said photosensor elements, the optic assembly having a best focus position at a predetermined distance from an outwardly facing optic surface of an outermost lens which results in a clearest image of the target area being focused onto the photosensor elements; d) an illumination assembly directing illumination towards the target area and including a lens array having a plurality of optic surfaces for directing illumination generated by illumination sources toward the target area, the lens array forming an outer surface of the modular housing; e) the shroud assembly supported within the housing and having an outwardly facing end adjacent the lens array; and f) wherein the shroud assembly includes an inner member and an outer member, the lens assembly being disposed within the inner member and the inner member being affixed to the outer member, the outer member supported on a support adapted to receive an end of the shroud outer member and align the lens assembly such that an optical axis of the lens assembly is substantially perpendicular to a light receiving surface of the photosensor array. - View Dependent Claims (10, 11, 12, 13)
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14. A modular camera assembly for a portable data collection device for imaging a dataform in a target area of the camera assembly, the modular camera assembly comprising:
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a) a modular camera housing defining an interior region in which components of the modular camera assembly are disposed and including a support extending into the interior region; b) a board camera assembly including a two dimensional photosensor array comprising an array of photosensor elements which generate a signal representative of the target area, the photosensor array supported in a predetermined orientation within the housing; c) an illumination assembly directing illumination towards the target area of the modular camera assembly and including a lens array having a plurality of optic surfaces for directing illumination generated by illumination sources toward an area substantially congruent with the target area, the lens array forming an outer surface of the modular housing; d) an optic assembly including a lens assembly supported in a shroud assembly having an outwardly facing end directed toward the target area, the shroud assembly being at least partially supported by the support and oriented such that an optical axis of the lens assembly is substantially perpendicular to a light receiving surface of the photosensor array; and e) wherein the optic assembly has a best focus position at a predetermined distance from an outwardly facing optic surface of an outermost lens of the lens assembly which results in a clearest image of the target area being focused onto the photosensor array photosensor elements, the predetermined distance corresponding to the best focus position being less than four inches. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A modular camera assembly for a portable data collection device for imaging a dataform in a target area of the camera assembly, the modular camera assembly comprising:
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a) a modular camera housing defining an interior region in which components of the modular camera assembly are disposed; b) a board camera assembly including a two dimensional photosensor array comprising an array of photosensor elements generating a signal representative of the target area, the photosensor array supported in a predetermined orientation within the housing; c) an illumination assembly directing illumination towards the target area of the modular camera assembly and including a lens array having a plurality of optic surfaces for directing illumination generated by illumination sources toward the target area, the lens array forming an outer surface of the modular housing; d) an optic assembly including a lens assembly supported in a shroud assembly, the shroud assembly being oriented such that an optical axis of the lens assembly is substantially perpendicular to a light receiving surface of the photosensor array; and e) wherein the shroud assembly includes an inner member and an outer member, the lens assembly being disposed within the inner member and the inner member being affixed to the outer member, the outer member supported on a support extending into the interior region of the housing. - View Dependent Claims (22, 23, 24, 25)
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Specification